How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Todd
Todd is now well below its former popularity. All-time it's been given to 291,097 U.S. babies, the 2,131st most common name by sound today, peaking at 15,940 in 1964, with 110 in 2025.
By sound, Todd also includes the spellings Tod.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).